pycrypto

How can I shuffle a very large list stored in a file in Python?

由 纵然是瞬间 提交于 2021-02-19 08:11:48
问题 I need to deterministically generate a randomized list containing the numbers from 0 to 2^32-1. This would be the naive (and totally nonfunctional) way of doing it, just so it's clear what I'm wanting. import random numbers = range(2**32) random.seed(0) random.shuffle(numbers) I've tried making the list with numpy.arange() and using pycrypto's random.shuffle() to shuffle it. Making the list ate up about 8gb of ram, then shuffling raised that to around 25gb. I only have 32gb to give. But that

LINK : fatal error LNK1104: cannot open file 'python27.lib'

由 坚强是说给别人听的谎言 提交于 2021-02-18 20:13:04
问题 I was trying to compile pycrypto-2.6.1 from source for Python 2.7.10 64-Bit Windows Version and facing the following error. Processing pycrypto-2.6.1.tar.gz Writing c:\users\sivasuba\appdata\local\temp\easy_install-ecznz_\pycrypto-2.6.1\setup.cfg Running pycrypto-2.6.1\setup.py -q bdist_egg --dist-dir c:\users\sivasuba\appdata\local\temp\easy_install-ecznz_\pycrypto-2.6.1\egg-dist-tmp-us3gka warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath. winrand.c LINK :

LINK : fatal error LNK1104: cannot open file 'python27.lib'

由 懵懂的女人 提交于 2021-02-18 20:09:15
问题 I was trying to compile pycrypto-2.6.1 from source for Python 2.7.10 64-Bit Windows Version and facing the following error. Processing pycrypto-2.6.1.tar.gz Writing c:\users\sivasuba\appdata\local\temp\easy_install-ecznz_\pycrypto-2.6.1\setup.cfg Running pycrypto-2.6.1\setup.py -q bdist_egg --dist-dir c:\users\sivasuba\appdata\local\temp\easy_install-ecznz_\pycrypto-2.6.1\egg-dist-tmp-us3gka warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath. winrand.c LINK :

LINK : fatal error LNK1104: cannot open file 'python27.lib'

由 佐手、 提交于 2021-02-18 20:06:20
问题 I was trying to compile pycrypto-2.6.1 from source for Python 2.7.10 64-Bit Windows Version and facing the following error. Processing pycrypto-2.6.1.tar.gz Writing c:\users\sivasuba\appdata\local\temp\easy_install-ecznz_\pycrypto-2.6.1\setup.cfg Running pycrypto-2.6.1\setup.py -q bdist_egg --dist-dir c:\users\sivasuba\appdata\local\temp\easy_install-ecznz_\pycrypto-2.6.1\egg-dist-tmp-us3gka warning: GMP or MPIR library not found; Not building Crypto.PublicKey._fastmath. winrand.c LINK :

Encrypting with AES-256 and PKCS7 padding

由 自作多情 提交于 2021-01-27 18:17:18
问题 I want to use python to encrypt some data and have come across pycrypto as a possible tool. In order to encrypt the data, I need to: Input passphrase string SHA-256 the string, giving key for AES-256 Represent sensitive data as string of 9 digit characters (ascii), with leading ascii 0s if present (the data will always be in this format). Encrypt data string using AES-256, NO SALT, using PKCS7 padding from RFC2315, in ecb mode. Represent ciphertext as Base64 (RFC 4648), needing 24 characters

Encrypt a big file that does not fit in RAM with AES-GCM

由 冷暖自知 提交于 2020-12-14 06:30:31
问题 This code works for a file myfile which fits in RAM: import Crypto.Random, Crypto.Cipher.AES # pip install pycryptodome nonce = Crypto.Random.new().read(16) key = Crypto.Random.new().read(16) # in reality, use a key derivation function, etc. ouf of topic here cipher = Crypto.Cipher.AES.new(key, Crypto.Cipher.AES.MODE_GCM, nonce=nonce) out = io.BytesIO() with open('myfile', 'rb') as g: s = g.read() ciphertext, tag = cipher.encrypt_and_digest(s) out.write(nonce) out.write(ciphertext) out.write

python常见的加密解密

由 天大地大妈咪最大 提交于 2020-11-24 03:40:00
1 # !/usr/bin/env python 2 3 ''' 4 5 Python Crypto Wrapper - By Chase Schultz 6 7 Currently Supports: AES-256, RSA Public Key, RSA Signing, ECC Public Key, ECC Signing 8 9 Dependencies: pyCrypto - https://github.com/dlitz/pycrypto 10 PyECC - https://github.com/rtyler/PyECC 11 12 13 Python Cryptography Wrapper based on pyCrypto 14 Copyright (C) 2011 Chase Schultz - chaschul@uat.edu 15 16 This program is free software: you can redistribute it and/or modify 17 it under the terms of the GNU General Public License as published by 18 the Free Software Foundation, either version 3 of the License, or

Pip:

由 陌路散爱 提交于 2020-11-15 04:02:51
Crypto 库异常 from Crypto.Cipher import AES File "/root/www/Mkilometers/app/env/lib/python3.7/site-packages/Crypto/Cipher/__init__.py", line 27, in <module> from Crypto.Cipher._mode_ecb import _create_ecb_cipher File "/root/www/Mkilometers/app/env/lib/python3.7/site-packages/Crypto/Cipher/_mode_ecb.py", line 29, in <module> from Crypto.Util._raw_api import (load_pycryptodome_raw_lib, File "/root/www/Mkilometers/app/env/lib/python3.7/site-packages/Crypto/Util/_raw_api.py", line 33, in <module> from Crypto.Util.py3compat import byte_string ImportError: cannot import name 'byte_string' from 'Crypto
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